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12330780 = 223571117157
BaseRepresentation
bin101111000010…
…011100011100
3212012110122120
4233002130130
511124041110
61120142540
7206544540
oct57023434
925173576
1012330780
116a62330
124167a50
132729727
1418cda20
151138870
hexbc271c

12330780 has 192 divisors, whose sum is σ = 45868032. Its totient is φ = 2396160.

The previous prime is 12330767. The next prime is 12330781. The reversal of 12330780 is 8703321.

12330780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12330780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78462 + ... + 78618.

It is an arithmetic number, because the mean of its divisors is an integer number (238896).

Almost surely, 212330780 is an apocalyptic number.

12330780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12330780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22934016).

12330780 is an abundant number, since it is smaller than the sum of its proper divisors (33537252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12330780 is a wasteful number, since it uses less digits than its factorization.

12330780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12330780 is about 3511.5210379549. The cubic root of 12330780 is about 231.0274137740.

It can be divided in two parts, 123 and 30780, that added together give a palindrome (30903).

The spelling of 12330780 in words is "twelve million, three hundred thirty thousand, seven hundred eighty".